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1、天津大學(xué)碩士學(xué)位論文電梯遠(yuǎn)程監(jiān)控系統(tǒng)設(shè)計(jì)與應(yīng)用姓名：冷麗娟申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：控制理論與控制工程指導(dǎo)教師：萬健如20081201摘要電梯是現(xiàn)代高層建筑中最常用的一種垂直運(yùn)輸交通工具，它節(jié)省了人們的時(shí)間和體力，為日常生活提供了方便。但由于電梯結(jié)構(gòu)復(fù)雜，因此要保證電梯安全可靠地運(yùn)行，監(jiān)控其運(yùn)行狀態(tài)和故障情況成為電梯管理、維護(hù)和安全運(yùn)行的迫切需要。為此運(yùn)用RS．485總線技術(shù)和數(shù)據(jù)庫(kù)技術(shù)開發(fā)了一種基于PC機(jī)和PLC的遠(yuǎn)程監(jiān)控系統(tǒng)，為電梯在運(yùn)行過程中故障的發(fā)現(xiàn)、分析、排除提供了方便、形象的解決方案。本文概述了電梯遠(yuǎn)程監(jiān)控系統(tǒng)的發(fā)展現(xiàn)狀，主
2、要對(duì)我校電梯遠(yuǎn)程監(jiān)控系統(tǒng)的硬件電路設(shè)計(jì)和軟件設(shè)計(jì)進(jìn)行了分析，完成了電梯遠(yuǎn)程監(jiān)控系統(tǒng)PC機(jī)(上位機(jī))界面的設(shè)計(jì)，實(shí)現(xiàn)了對(duì)電梯運(yùn)行狀態(tài)的動(dòng)態(tài)顯示。針對(duì)監(jiān)控系統(tǒng)的特點(diǎn)，從系統(tǒng)元件、硬件電路、軟件結(jié)構(gòu)和軟件程序設(shè)計(jì)等多方面考慮，運(yùn)用抗干擾技術(shù)，保證了前端數(shù)據(jù)采集系統(tǒng)(前端機(jī))的可靠性。上位機(jī)中利用自定義協(xié)議實(shí)現(xiàn)了上位機(jī)和前端機(jī)之間通過RS．485總線的多線程遠(yuǎn)程數(shù)據(jù)通信，并采用由PLC構(gòu)成獨(dú)立的數(shù)據(jù)采集單元完成對(duì)電梯運(yùn)行狀態(tài)數(shù)據(jù)的上傳和參數(shù)下傳設(shè)置。本文利用面向?qū)ο蠹夹g(shù)建立了故障知識(shí)庫(kù)，提高了準(zhǔn)確性，并有利于故障知識(shí)庫(kù)的擴(kuò)展和軟件的維護(hù)。最后
3、通過對(duì)整個(gè)監(jiān)控系統(tǒng)的硬件調(diào)試、軟件調(diào)試和軟硬件綜合調(diào)試，進(jìn)一步驗(yàn)證了本監(jiān)控系統(tǒng)的可行性和有效性。關(guān)鍵詞：電梯；遠(yuǎn)程監(jiān)控；RS．485總線；前端機(jī)；監(jiān)控畫面ABSTRACTElevatoristhemostcommonlyusedinmodemhigh—risebuildingsasaverticaltransportation，itsavespeople’Stimeandenergyfordailylifetobemoreconvenient．However,duetothecomplexstructureoftheelevator,
4、itbecomesveryurgentforensuringelevatorsafeandreliableoperation，monitoringitsoperationandfailuretopursuetheelevatormanagement，maintenanceandsafeoperation．Tothiscause，asystembasedonPCandPLCremotemonitoringsystembyRS-485bustechnologyanddatabasetechnologyisdeveloped．Thesyst
5、emprovidesaconvenientandvividsettlementforfaultdetecting，analyzingandremoving．Thisdissertationprovidesanoverviewofthedevelopmentoftheelevatorremotemonitoringsystemanalyzesandstudiesmainlythehardwaredesignandsoftwaredesignofmyschool’Selevatorremotemonitoringsystem，comple
6、testhedesignoftheelevatorremotemonitoringsystem’SdrivingPC(PC)interface，andrealizesthedynamicdisplayoftheelevatoroperation．Forthesystemcharacteristics，asortofamHammingtechnologyisuse．dtoensurethefrontterminaldataacquisitionsystem(FrontTerminal)reliabilityunderconditiona
7、lofconsideringthesystemcomponents，hardware，softwareandsoftwareprogramming，andmanyotherfactors．ByusingacustomprotocolandtheRS-485system，PCrealizesmulti—threadedlong—rangedatacommunicationswithFrontTerminal．Meanwhile，byusinganindependentdataacquisitionunitconstitutedbyPLC
8、，PCcompletesthesetupofdatacollectionofelevatorrunningstateandthedata-setparameters．Inthispaper，object—oriented
